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First published in Great Britain in 2001Second edition published 2004Third edition published 2008Fourth edition published 2012Electronic edition published 2012

© Pearson Education 2001, 2004, 2008, 2012 (print)© Pearson Education 2012 (electronic)

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ISBN: 978-0-273-76808-1 (print)978-0-273-76809-8 (ePub)978-0-273-76810-4 (PDF)

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